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PHP数组内存耗用太多问题的解决方法_PHP

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Release： 2016-06-01 12:19:41
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因为这个是语言的问题，常规方案比较难以解决。下面是一种通过string 解决的方案。
复制代码 代码如下:
$total = 100000;
$double = "";
for ($i = 0; $i {
$double .= pack("d", $i + 0.1);
}
for ($i = 0; $i {
unpack("@" . ($i * 8) . "/d", $double);
}

这个例子用一个string 保存一个double 的数组。然后在使用的时候unpack出来。
当然，这会影响性能。要看具体的需求。

比如这样的情况下：
你有10个数组，每个数组10M (1百万数据左右)，那么十个要花费 100M内存。
再加上10个人并发的话，内存就会严重不够了。
然后，在10个数组，不是每次都同时使用的。你可以，把他们保存成string
然后，在使用的时候，unpack某一个string变成一个数组。

Related labels：
php array
source：php.cn
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